In the solver
What it is
Resolve the wind over complex terrain to compute the topographic speed-up reaching your site - replacing a single blanket code factor with the real wind field over the relief.
Typical run
Indicative single-GPU estimates - they scale with domain size and the accuracy you need.
km-scale
Domain size
Tens of M
Mesh cells (LBM nodes)
Hours
Runtime per direction
1x 24 GB GPU
Typical hardware
How it works
Build a digital terrain model of the site and the surrounding relief.
Set the atmospheric inflow and ground roughness with the ABL wall model.
Run across the governing wind directions over the terrain.
Compute the topographic factor and map the speed-up over the site.
What you get
Why you can trust our results
We are not a physical wind tunnel - we are a CFD specialist whose results are validated against wind tunnel measurements. AeroSim is an international reference in computational wind engineering.
Peer-reviewed
Published solver
JWEIA, 2026
Peer-reviewed: Oliveira Jr., W., et al. “Nassu: A high performance LES solver for computational wind engineering”. Journal of Wind Engineering & Industrial Aerodynamics, 274 (2026) 106465.
Rather have it done for you?
The same study, delivered as a service
Our team delivers this study end to end, with a technical report ready for design.
See Topographic Factor
Other use cases
Ready to simulate?
Open the web solver and start from a template.